Data may not have been summarised appropriately
نویسندگان
چکیده
منابع مشابه
Flavor - singlet hybrid baryons may already have been discovered
The splittings between the spin 1/2 and spin 3/2 iso-singlet baryons Λs(1405) and Λs(1520), and their charmed counterparts Λc(2593) and Λc(2625), have been a theoretical conundrum. Here we investigate the possibility that the QCD binding of color octets comprised of three quarks in a flavor singlet configuration is stronger than previously envisaged, allowing these states to be interpreted as h...
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William Sullivan’s 1899 paper, ‘A Note on the Influence of Maternal Inebriety on the Offspring’, often cited as a precursor to modern fetal alcohol research, was published at a time when alcoholism was a topic of great interest in Europe and North America. Emerging theories of heredity, eugenics and temperance movements drove alcoholism research from 1860 to 1910. In addition to an upsurge of m...
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Correspondence An ancestral whole-genome duplication may not have been responsible for the abundance of duplicated fish genes Euteleost fishes have more duplicate genes than mammals [1,2]. The presence of additional Hox clusters in the zebrafish and observation of synteny groups have led to the hypothesis that a whole genome duplication at the origin of actinopterygian fish is responsible for t...
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philosophy of mathematics suited well the ‘‘general emphasisin later nineteenth-century mathematics on revisiting foundationalquestions’’ (p. 61). Pure geometry as it emerged from Frege, Paschand Hilbert, provided a diagram-free, purely sentential notion ofproof, which has lasted unto our own day.In the second, and greater, part of the book, Greaves traces outthe interre...
متن کاملHave Pentaquark States Been Seen?
The status of the search for pentaquark baryon states is reviewed in light of new results from the first two dedicated experiments from CLAS at Jefferson Lab and of new analyses from several labs on the Θ + (1540). Evidence for and against the heavier pentaquark states, the Ξ(1862) and the Θ 0 c (3100) observed at CERN and at HERA, respectively, are also discussed. I conclude that the evidence ...
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ژورنال
عنوان ژورنال: BMJ
سال: 1996
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.313.7053.361b